X-ray table.



' Patented Feb.2o,1917.

' 2 sums-snes; I.

J. B. WANTVZ. x-RAY um. APPLICATION FILED JAN. I5 1915 n. .YL mmf Nm w wI M I|Iv||.| HUIHUIIHUHHHUIMIHUAUHHHUIMHHHUHHIII IIIIIIIWIIMHIIHIIIIlI|||IIII|II|IIIIIIIIIIvIIIII tively .only 'of the above JULIUS VB.WAN'IZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO VI OF CHICAGO, ILLINOIS, ACORPORATION OF )TOR ELECTRIC COMPANY,

ILLINOIS.

:maar TABLE.

:Application iiled January 15, 1915.

To all -w/wm t may concern:

Be it known that I, JULIns B. WANTz, a citizen of the United States,residing at Chr cago, in the county of Cook and'Sta'teof. Illinois,haveinvented a new and useful Improvement in XRay Tables', of which Athefollowing is a specification.

My invention relates more particularly to X-ray tables adapted foreither fluoroscopc or radiographic work; and my objects, generallystated, are' to provide a table comparalight in weight and economicaltomanufacture; to provide a vtable so constructed that it may be readilyconditioned for either luoroscopic or radiographic work, without theloss of` flexibility or range in either case, the radiographic workinvolving the taking of either .single rntgenograms or stereoscopicrntgenograms; to provide against the fogging of the sensitized platesbyre ected rays;,and to protect t-heoper-V vator from the action of therays.

Referring to the accompanying drawings@ l Figure 1 is a plan view' of atable constructed inA accordance with my invention. Fig. 2 -is a sectiontaken at the line 2 on Fig. 1 and viewed in the direction of the arrow.Fig. 3 is a `View in side elevation of the up per portion of thetable,the supports therefor being shown in dotted lines, and a portionof the tabletop being broken' away. Figyl is a` bottom plan view of thetabletopg'and Fig. 5, a Vface view of one of4 thev pair of simi ar'ray-obstructing plates employed) In the drawings, I have illustratedmyinvention asembodied in a table adapted for use in producing; eitherstereoscopic, or sin-` gle, rntgenograms, 'anduoroscopic work, as this.is desirable under'ordinary condi'f 'tions of practice, though as.hereinafter stated, certain featuresofmy"' ventioliiare 1 applicable toa table embodying certain* features. Y

The table-top shown isfformed of a con- 'tinuously `extending. section 6of material transparent to X-rays, a desirable material being aluminum.-Secured to the undersides of the section' 6 ar'e siderails 7 containingon their ifn'ner surfaces upper and lower4 grooves, respectively, 8`'and`9 at opposite) Specication of Letters Patent.

lugs 21 on the clips L intersection-of two l y Patented Feb.2o,1917.lSerial No. 2 .481.

sides of the table. The lower grooves 9 contain rails 10 forming tracksfor a carriage 11 longitudinally re :iprocable'lengthwise of the '65tableftop, the carriage 11 carrying rollers. 12 at lts opposite e( 10.he provisig eordance with common practice, especiallywhen it is desiredthat.

readily understood that the carriage may be y provided `of any desirableform and operated in any desirable manner. struction illustrated, thecarria formed of material opaque to provided with a propelling spring 13connected at its oppo of the table-top s represented at 14 carriage 11carries `ed to engagewith carriage 11 is pr means for releasa X-rayplates to ls posures to prodi genograni, In thl the X-ray plates. tre tothe upper surface are lield in place lI theseclips bei-ng ad; ustabletoward and away from each other ior different sized plates andreversible for clamping a plate to the upper surfaceof .the carriage 11when the nd tethe carrlage 11,-as

a lug 16 at one side adaptatrigger device 17. `The )vided with anysuitable bly securing thereto. ltwo construction illustrated',

of the carriagel 11 and pla-te is in anenvelop', as represented at m, 85

of the lugs 19,

as by engagementuherewith y or. when the vplate is in a plateholder, asrepresented at 2B, :is-by engagement of thev The parts descriiLd .y inaccordance with common practlce, that r when the carriage isintlietrigger 1 .center of the plate t,

atrightv-angles to each' other on'nthelpper surface of the VsectioithatA the center-l l Vofv i for example, that in ongwhich the secondexposure is' to be made, wrll, upon releasing ahe trigger 17, thusperinitting the spring 13 to operate, be caused .ges which engage therails n of the carriage is in ac vstereoscopic rntgenograms be produced,and it will .be'A

. In the con# e 1,1 may be '65 -rays and is iite ends 'to a rigidportion and 15, respectively. The 7l) e used for successive ex- .ce astereoscopic rntadapted to be-applied the' reversible clips 18, 230

'are so proportioned, 90

the position illusl l trated n- Fi ."4, nanely, a positibn'whereininter] :wks with theiug 16,113@ namely the one to-'gbep first exposed,will r1 gister withthepioihtpff ines 22 andas arranged l l `sof nietableitqpwnd* he Succeeding Plats, isi-10 the plate-holder 2O and"lto-register with the point of intersectionv of i,

the' lines 22 and 23 or in other'words, will be carried to the samepositionfor exposure, as that occupied by the first plate at the time ofmaking the first exposure.- y '1 The table-top'may be supported in .fanysuitable manner, thesupport shown in the drawing being shown in partonly, at 24, but as the articular formof supportforthe table-top fin'mslno part of the resent 1nvention, a detailed description t ereofappears'to be unnecessary. Cooperating. 'with the section 6 of thetable-top are slides represented at 25, these slides, which in .the

illustrated embodiment of my invention are of similar size andshape andprovided with handles 26,'extending at their opposite sides into thechannelsS and longitudinally adjustable therein independently of eachother to extend in mutual abutting relation at their inner ends orinvarying spaced relation, these slides being formed of material opaqueto X-ra s, it being preferred' 'that each be made o' sheet-iron eltheralone, or with a covering of lead, the sheet-iron being preferably aboutone-eighth Vof an inch thick. When the table is to be used for themaking of stereoscopic radiograms,-the op era-tor will adjust the slides25 lengthwise of the table-top to present between their opposingends aspace of such width that an X-ray plate centered relative to theintersection of the lines 22 and 23 may be exposed to the X-rays emittedfromA an Xe-ray tube, not shown, which would be located above the table.With the slides 25 in the adjusted position referredto, theslide at theright hand side of Fig. l'will serve to prevent exposure of the plate'at the righthand end of the carrier (Fig. 4), namely, the one which isto receive the second exposure; and when the carriage 11 has beenshifted to the left in Fig. 4 to position the plate at the right-handend of the carrier 11 for reeeivin the second exposure,`the slide 25 atthe le t-hand end of Fi 1 Will serve to prevent exposure to the -rays,of the first plate-Which was exposed.

The slides 25 being adjustable toward and away from each other, a spaceof any desired Width may be provided at their `adjacent ends and thusany desired width of section transparent to X-rays may be provided inthe table-top. This is of advantage, especially where plateslofdifferent sizes are employed as the slides 25v may be adjusted toprevent the passing of' X-rays along opposite sides of the X-ray plate.-which'reduces danger of fogging'of the X-ray plates by. refiected X-raysand. danger-to the feet ofthe operator from subjection to the rays. Inthis operator, than would be possible with a table Way even betterprotection isgiven to the plate before and afterexposure and to theprovided with immovable opaque plates.

after exposure.

. iiexibility.-

4the top of the table beneath the patient.

When the table is' used in this manner, the slides 25 would be adjustedon the table-top into endwise abutting relation. This feature of thetable-is very desirable as the slides 25 by reason of their relativestiffness and their position in the table-top serve as a stilfeningmedium for the latter. It is well understood that the thicker' thesection 6 of the tabletop, the less transparent to X-rays it becomes,and furthermore, the more expensive. The-table-top should, however,Where the X-ray plate is placed on its upper surface and the cientlystiff to prevent it from sagging to such an extent that the X-ray plateunder the weight of the atient Will not break. By providing the sli es25 the section 6 of the table-top may be made relatively thin as theslides 25 will, when adjusted to the innermost position, render itsufficiently stifl' to prevent objectionable sagging.

In using the table for fluoroscopic Work, 'the slides 25 would bewithdrawn from the table-'top which would render the entire tabletoptrans arent to X-rays emitted from an X-ray' tu e, which in practicewould he located, for this class of Work, beneath the table-top. Theoperator would therefore be enabled to make a fiuoroscopic examinationof the entire body of the patient, it being 4understood that 'thecarriage l1 would be removed'inmaking such an examination.

In the type of table in which the opaque shields on the table arestatiorfary, the fluoroscopic field was equal to about one-third thetotal area of the table-top, one of'the other thirds being renderedopaque by one sheet for protecting the X-ray plate 1n the right end ofthe 'carrier 11 before exposure and the remaining third being renderedopaque by the .other shield for protecting the X-ray' plate in theleft-hand end of the carrier 11 By making these shields movable inaccordance with my invention, better protection is given the X-rayplates before and after exposure when the table is way a tableconstructed in accordance with the preferred embodiment of my inventionWith'a topas described, can be used either as an X-,ray table with astereoscopic plateshifter, as `u. radiographic table for use in takingsingle rntgenograms, -or as a fluoroscopic table,

While I have illustrated-aud described my patient lies upon this plate,be suftl- 1 without any loss of range or 115 used for the taking ofstereoscopic rntgenoimprovement as embodied in a table adapted for bothliuoroscopieand radiographie Work, it will be readily understood that itmay be embodied in a table designed for radiographic work alone.

at I claim as new and desire to secure by Letters Patent is- In acombined lluoroseopic and radioa graphie X-ray table, the combination ofa 10 `table-top of material transparent to X-rays, and members ofmaterial opaqueto 'X-rays' `relatively movable toward each other forradiographicwork and relatively movable away from eachother to enlargethe transpal-int lield of'the table-top, for luorosoopic wor a 2. Ina'table for radiographic Work and ur'oscopic Work, the combination of atable-top of material transparent to X-rays, 2o 'and plates of materialopaque to X-rays movable to a position on the table in which they opposeportions only of thetable-top and render a comparatively small area ofsaid top transparent for radiographie Work, `2`5 and ,to a position inWhich a relatively large area of the table-top is rendered transparentfor lu'oro'seopic Work. 7' 3. Ina table for radiographie Work andluoroscopie` Work, the combination of a $0 table-top Aof materialtransparent to X-rays, and plates of material opaque to X-rays and to aposition in Which a relatively large' area of the table-top is renderedtransparent 'for fluoroscopic Work. I p

5. In a table for radiographie'work and fluoroscopio Work, thecombination of a table-top of material transparent to X-rays,v

movable on the' table longitudinally of the latter to a position in`Which they oppose portions only of the table-top and render acomparatively small area 'of said top trans! tion in which a relativelylarge area of the ytabletop is rendered transparent for liuo-v roscopicWork.

`(i. In a table-top for radiographie Work and luorosoopic work; theeon'ibination of a" table-top of material. transparent to Xsraysymovable to a position in which they oppose p 0 fluoroscopic Work, thecombination of a.

table-top 'transparent for radiographic Work,

yand members of material opaque to X-rays parent for radiographie'Woi-k,and toa posi- -iiierosoopie Worin and plates of naterial opaque toX-rays movable on said table longitudinally thereof to a positioninwhich they oppose portions only of the tabli top and render acomparatively small area of said table-top transparent for radiogriphicWork and removable from the table t) free said table-top of obstructionto X-iays for liuoroscopie Work.

7. In a table for radiographie Work and lluoroscopie Woilr, thecombination of a table-top transp trent to X-rays, members of materialopaxue to Xerays movable on the table to a pos itionin which they opposeportions only of the table-top and render -a comparatively sn all areaof said top transparent for radiog ."aphic Work, and to a position in'which a relatively large area of the table-top 1s rende fedtransparentffor iuoro- Y scoplo Work, and shiftable X-ray-platecarryingmeans teneath said opaque members for positionii g the Xsray plates insuocession opposite s iid relatively small trans? parent area oftalle-top.

In a combined fluoroscopio and radiographie X-ray talle, the`eombinationqoi a tabletop having 1he section thereof Whieh supports thepatimt .formed of material transparent to X-i ays, members of materialopaque to X-rays relatively movable toward each other for rad iographicWork and relatively 4movable awry from each other to enlarge thetransparent field ofthe table-top for fluoroscopic Wtrk, and shiftableX-ray,

plate-carrying mea ns beneath saidy opaque members for positioningr Xdayplates in succession oppositey said relatively small transparent area oftable-top.

9; In a table for radiographic work and luoroscopio Work, thecombination of a table-top of material transparent to X-rays, plates ofmaterial o] aque'to X-rays movable on the table to a position in whichthey oppose portionsonly c f the tabletop and ren der `a comparativelysmall area `of the table- -top transparent for radiographie Work andremovable from the table to free said tabletop of obstruction 'to X-raysfor lluoroscopic Work, and shiftabla X-rayplatecarrying means beneath'said opaque members for positioning X-ray plates in succession oppositesaid relatively nnall transparent area of table-top. y

. 10. In a table for radiographie Work and luoroseopie work, 1 hecombination y"ol" table-top of material transparent to Xsrays, membersof materii ll opaque to Xrays mounted on the table beneath saidtable-top and movable to a pos: tion in which they oppose portions onlyof the table-top and render a comparatively s: nall area of saidtabletop transparent for r: idiographio work, and to a position in whicha relatively large area of the table-top is/rer der ed transparent for ia nd shijftable X-raypiateearrying ineens beneath said opaque i' membersfor positioning X-ray plates in y successionv opposite said relativelyysmall transparent area of table-top.

11.'In a table for radiographic Work and flu'oroscop'ie work, thecombination of a I `eession opposite said relatively smalltranstable-top of material transparent to 'X-raysf members of materialopaque to X-rays movable on the table longitudinally of the latter to aposition in which they oppose portions only of the table-top and rendera comparatively small area of said top transparent for radiographicwork, and to a position in which a comparatively large area of thetable-top is rendered transparent for -fluoroscopic work, and yshiftableX-ray-1 plate-carrying means beneath said opaque members for positioningX-ray plates in sucparent `area of table-top.

12. In a table for radiographic and fluoroscopic work, the combinationof a table-top of material transparent to X-rays, platesiof materialopaque to X-rays movable,on said table longitudinally thereof to aposition in which they oppose portions only of the table- .i smalltransparent area of table-top.

13. In a radiographie table, the combination of a table-top adapted tosupport a patient, relatively movable members of material opaque to-X-rays adapted to be adjusted to render a comparatively small area ofthe table-top transparent to X-rays for radiographic work and acomparatively large area transparent for luoroscopic Work, and means forsupporting an X-ray plate below said table-top.

14. In a radiographic tableT the combination of a table-top, means forsupporting an X-ray plate beneath the upper portion of said table-top,and means above the position occupied by the X-ray plate for renderingthe portion of said table-top above said X- 'ray plate transparent toX-rays, said lastmentioned means being adjustable to renderaeomparatively small area of thet'able-top transparent to X-rays forradiographic work, and a comparatively large area transparent forluoroscopic Work.

l5. In a radiographic X-ray table, the combination of a table-top havinga section transparent to X-rays, a plurality of slides of materialopaque to X-rays adjustable to render a comparatively small area of thetable-top transparent opposite the ends of said slides for radiographicwork, and a t -amparatively large area transparent for iiu-` oroscopicWork, and means for supporting Lampes an X-ray plate below, and inregistration with, the space presented between the ends of said slides.

16:.'111 a radiographie X-ray table, the combination of a table-top witha section thereof transparent to X-rays, relatively movable membersopaque to X-rays adapted to be adjusted tol render a comparatively smallarea of the table-top transparent to X-rays for radiographic Work and acomparatively large area transparent. for fluoroscopie work, land ashiftable X-ray-plate- `holding member below said table-top, one

of said relatively movable members serving to prevent X-rays fromstriking one of said X-ray plates on said shiftable member..

17. In av radiographic X-ray table, the combination of a table-top withits top section formed of material transparent to X- rays, a pair ofrelatively movable members opaquev to X-rays disposed beneath, and in,

registration with, said trans arent section of the table-top, and ashifta le plate-holding member below said relatively adjustable membersadapted to support a pairof plates,

said relatively adjustable members being` adapted to be adjustedgtorender a comparatively small area of the table-top transparent to X-raysfor vradiographic Workand a comparatively large area transparent forfluoroscopic work and adapted to be so' ositioned relative to the X-rayplates on sai shiftable member that `when said shiftable member is inone position for exposing one of its plates, one of said relativelymovable members will prevent the other of said X-ray plates from beingexposed to thev X-rays, and vwhen said shiftable member is shifted toexpose theother X-ray plate thereon, the other of said relativelymovable members will prevent the X-ray .plate first exposed from beingsubjected to the X-rays.

18. In a combined fluoroscopic and radiographic X-ray table, thecombination of a table-top having .a section thereof which supports thepatient formed of material transparent to X-rays, and means on saidtable-top adjustable to different positions thereon and serving, when inone position,

.to stiffen said transparent section against u ndue sagging under tbeweight of the patlent and removable from such position to graphic X-ray'table-top having a position in 'which they will be out of the pathofthe .L -rays used for fluoroscopic Work.

20. A combined luoroscopic and radiographie X-ray table provided withinwardly .opening channels and having a top-section for supportingthepatient formed of Inaterial transparent to X-rays, and slides ofrelatively stitt' material opaque to X-rays adjustably mounted in saidchannels.

21. In acombined luoroscopic and radiotable, the combination of atable-top with its upper section upon which the patient rests formed ofmaterial transparent to X-rays', a pair of slides of material opaque toX-rays on said table-top longitudinallt7 adjustable thereon and adaptedto be moved into and out of registration with said transparent sectionand serving, when adjusted to innermost position, to stiiliensaidtransparent section against sagreiney under the weight of the patient,and a shiftahle member below said slides adapted to carry a pair ot'X-ray plates, t'or the lmrpose set forth.

In a combined lluoroscopic and radiographic X-ray table, the eombilmtionof a a section thereof which supports the patient formed of materialtransparent to X-rays, and means on said tabletop opaque to X-rays,adjustable to different positions thereon and serving; when in loneposition, to stiffen said transparent section against undue saggingunder the weight of the patient and removable from such position to aposition in which they will be out of the path of the X-rays when thetable is being' used for lluoroseopie work. y

23. In a combined Huoroscopie and radiographic X-ray table, thecombination of a table-top having a section thereon Which supports thepatient formed of material Uoptea ol this patent may be obtained forwhen the table is 'being transparent to X rays, and slides opaque toX-rays on said tlble-top adjustable to dif- `ferent positions thereonand serving, when in one position, io stiffen said transparent sect-ionagainst undue sagging under the weight of the pazient and removable-fromsuch position to a position in which they will be out of the path of theX-rays when the table is beingr used for lluoroscopic work.

24. In a combir ed lluoroseopic and radiographic X-ray ta ile, thecombination of a table-top formed of material transparent to X-rays,members nf material opaque to X- rays'mounted on the table to berelatively movable lengthwise of the table-top toward and away from earhother to vary the transparent Held ot tle table-top and serving, whenadjusted t( a certain position, to titten said transparent section`against sagging under the we ght ot' the' patient, and a shiftablemember below said first-named nwmbers adapted oV carry a paiil of X-ray`plates. t'or the pm pose set forth.

25, In an X-ray lable. the combination of a table-top ol ma e'rial(ransliiarent Vto X- rays, and memberu of material opaque to X-raysextending practically eo-extensive with said transparent section andeachmovable along saidtable-top independently of the other.

26. In an X-ray 'vable, a table-top of mat rays, adjustable me of thetop of the-,tal eluding members o; rays, relatively mo1 parent Held ofthe table-top, means for said firsl -named means.

'ULIUS B. WANTZ. v

In presence of- JAMES THELE N, GEO. M. MoFiDRIEs.

the combination of arial transparent to X- ans for rendering partsvle-opaque to X-.rays, inmaterial opaque` to X- 'ablelto vary thetranslve cents eachyby addressing the Coinmissionerof Patents,Washington, D. C.

and guiding

